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Goodwill and Intangible Assets, Net Goodwill Table (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Jun. 30, 2012
Dec. 31, 2009
Goodwill [Line Items]        
Goodwill, Gross carrying amount $ 1,353 $ 1,355 $ 2,249 $ 1,302
Goodwill, Acquisitions 19 18    
Goodwill, Adjustment to step-up value (20) 35    
Goodwill, Foreign exchange (1)      
Goodwill, Accumulated Impairment (226) (226) (226) (219)
Goodwill, Impairment 0 (7)    
Goodwill, Net carrying amount 1,127 1,129 2,023  
Automotive Segment [Member]
       
Goodwill [Line Items]        
Goodwill, Gross carrying amount 1,323 1,343 1,331 1,292
Goodwill, Acquisitions 0 16    
Goodwill, Adjustment to step-up value (19) 35    
Goodwill, Foreign exchange (1)      
Goodwill, Accumulated Impairment (226) (226) (226) (219)
Goodwill, Impairment 0      
Goodwill, Revised 2008 goodwill impairment   (7)    
Goodwill, Net carrying amount 1,097 1,117 1,105  
Energy Segment [Member]
       
Goodwill [Line Items]        
Goodwill, Gross carrying amount 0   894  
Goodwill, Accumulated Impairment 0   0  
Goodwill, Net carrying amount 0   894  
Railcar Segment [Member]
       
Goodwill [Line Items]        
Goodwill, Gross carrying amount 7 7 7 7
Goodwill, Acquisitions 0 0    
Goodwill, Adjustment to step-up value 0 0    
Goodwill, Foreign exchange 0      
Goodwill, Accumulated Impairment 0 0 0 0
Goodwill, Impairment 0 0    
Goodwill, Net carrying amount 7 7 7  
Food Packaging Segment [Member]
       
Goodwill [Line Items]        
Goodwill, Gross carrying amount 3 3 3 3
Goodwill, Acquisitions 0 0    
Goodwill, Adjustment to step-up value 0 0    
Goodwill, Foreign exchange 0      
Goodwill, Accumulated Impairment 0 0 0 0
Goodwill, Impairment 0 0    
Goodwill, Net carrying amount 3 3 3  
Metals Segment [Member]
       
Goodwill [Line Items]        
Goodwill, Gross carrying amount 20 2 14 0
Goodwill, Acquisitions 19 2    
Goodwill, Adjustment to step-up value (1) 0    
Goodwill, Foreign exchange 0      
Goodwill, Accumulated Impairment 0 0 0 0
Goodwill, Impairment 0 0    
Goodwill, Net carrying amount $ 20 $ 2 $ 14